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Mita Industrial Co., Ltd.

USPTO Granted Patents = 1,344

EPO Patents = 2

Trademarks = 1

Forward Citations = 11,221

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914 inventors (with patents filed for the assignee):

Tatsuo Aizawa (53 out of 53 patents)

Nobuhiro Miyakawa (44 out of 44 patents)

Haruo Yamamoto (38 out of 43 patents)

4. Yoichiro Irie (30 out of 31 patents)

5. Yutaka Shigemura (28 out of 30 patents)

6. Masaya Fujimoto (26 out of 31 patents)

7. Hiroshi Kimura (25 out of 33 patents)

8. Nobuhiko Kozuka (24 out of 24 patents)

9. Masahiko Hisajima (24 out of 26 patents)

10. Hiroyuki Harada (23 out of 69 patents)

11. Shigeo Koyama (23 out of 23 patents)

12. Masayuki Mizuno (22 out of 28 patents)

13. Masahiro Sako (21 out of 25 patents)

14. Eiichi Miyamoto (20 out of 36 patents)

15. Yasushi Kamezaki (20 out of 21 patents)

Core Competencies:

Photocopiers

Image Forming Apparatus

Toner Cartridge

Electrophotographic Photoreceptor

Automatic Document Feeder

Image Data Processing

Photosensitive Drum

Document Transporting Device

Toner Replenishing Device

Facsimile Machine

Naphthoquinone Derivative

Developer Unit

1,344 patents: Sort by Forward Citations

1. 6226069 - Stackless continuous dual-sided copying method in photocopiers (2001-05-01),

2. D436986 - Toner supplying cartridge for an image forming apparatus (2001-01-31),

3. 6174639 - Positive charging color toner (2001-01-16),

4. 6145828 - Sheet conveyor single-handed parting engagement mechanism (2000-11-14),

5. 6115150 - Image data processing apparatus and image data processing process (2000-09-05),

6. D430196 - Toner supplying cartridge for an image forming apparatus (2000-08-29),

7. 6104905 - Image forming apparatus of intermediate transfer type (2000-08-15),

8. 6096467 - Positive charging color toner (2000-08-01),

9. D428435 - Developer unit for an image forming apparatus (2000-07-18),

10. 6090514 - Electrophotographic photoreceptor (2000-07-18),

11. D428050 - Toner supplying cartridge for an image forming apparatus (2000-07-11),

12. 6085056 - Toner cartridge with partition wall (2000-07-04),

13. 6085052 - Posture-maintaining photocopier imaging unit casing (2000-07-04),

14. 6073927 - Automatic document feeder (2000-06-13),

15. 6067436 - Image-forming machine (2000-05-23),

Mita Industrial is a leading manufacturer and supplier of industrial machinery and equipment. With over 50 years of experience, we specialize in producing high-quality products for various industries such as automotive, aerospace, electronics, and more. Our extensive range of solutions includes machining tools, automation systems, cutting-edge robotics, and customized equipment tailored to meet specific client requirements. We are committed to delivering innovative and reliable solutions that enhance productivity, efficiency, and profitability for our customers worldwide.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

1,344 Patents

#21 in Osaka

#160 in Japan

#715 in the World

Mita Industrial Co., Ltd.

Forward Citations = 11,221

914 inventors:

Tatsuo Aizawa (53 out of 53 patents)

Nobuhiro Miyakawa (44 out of 44 patents)

Haruo Yamamoto (38 out of 43 patents)

4. Yoichiro Irie (30 out of 31 patents)

5. Yutaka Shigemura (28 out of 30 patents)

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